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Simplifying an = 2 + (n + -1) * 4 Reorder the terms: an = 2 + (-1 + n) * 4 Reorder the terms for easier multiplication: an = 2 + 4(-1 + n) an = 2 + (-1 * 4 + n * 4) an = 2 + (-4 + 4n) Combine like terms: 2 + -4 = -2 an = -2 + 4n Solving an = -2 + 4n Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Divide each side by 'n'. a = -2n-1 + 4 Simplifying a = -2n-1 + 4 Reorder the terms: a = 4 + -2n-1
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